Phil Underwood has spent twenty years mapping underground caves. His work has produced a series of open hardware devices that increase the speed and accuracy of surveys, culminating in a complete photogrammetry system based on a Raspberry Pi 5 Compute Module.
Pi-Ener-lite is a compact UPS for Raspberry Pi Zero with a CW2015 fuel gauge, DS1307 RTC, and 18650 battery support, all connected via spring-loaded pogo pins.
SonicFly lets a drone follow another using only the sound of the leader’s rotors—no GPS, cameras, or radio. Built by Yanbaihui Liu, it uses a four-microphone array, neural network, and Kalman filter to estimate position acoustically.
element14 Community has launched a new design challenge focused on smart home and healthcare projects, inviting engineers, makers, and tech enthusiasts to build innovative prototypes that improve everyday living and personal well-being.
Build a simple soil moisture threshold detector with a PCB fork sensor, an LM393 comparator, and a relay output for visual and local control.
The IOX-77 is an ESP32-C3-based development board that packs 75 GPIO pins into a compact 71 × 42 mm PCB, using five RISC-V CH32V003 microcontrollers on an I²C bus for parallel execution and expandability.
The Blooper is an open-source USB looper that brings back the null modem concept for modern USB-C connections, enabling UART serial debugging, device emulation, and network-free file transfers between two hosts.
Cirkit Designer is an AI-powered platform for designing, simulating, and prototyping electronic circuits, supporting popular boards like Arduino, ESP32, and Raspberry Pi with a real-time simulator and a library of over 30,000 components.
Arduino UNO Q pairs a Qualcomm Linux processor with an STM32 real-time microcontroller on the classic UNO form factor, bringing AI and edge computing to the maker community.
Learn how to build a Bluetooth-controlled fire truck using the Arduino UNO R4 Minima board, an HC-05 module, and a water pump. This step-by-step guide covers components, assembly, programming, and testing.
Iteration3D is a French web platform that generates customizable 3D models for printing, using a parametric engine to create models on demand based on user specifications.
This article describes a GSM-based emergency call system with an RF receiver that sends calls and SMS to pre-programmed numbers when a small wearable transmitter is activated. It is designed for elderly people and bedridden patients who need to call for help with a single press of a button.
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